import java.util.*;
  public class e4_11{
    public static void main(String args[]){
    Scanner scanner = new Scanner (System.in);
    int [] a = {12,34,9,23,45,6,45,90,123,19,34};
    Arrays.sort(a);
   System.out.println(Arrays.toString(a));
   System.out.println("输入整数，程序判断该整数是否在数组中：");
   int number = scanner.nextInt();
    int  index=Arrays.binarySearch(a,number);
  if(index>=0)
    System.out.println(number+" 和数组中索引为"+index+"的元素值相同");
  else
    System.out.println(number+"不与数组中任何元素值相同");
   }
}
